I don't eat different colors of M&Ms in the same bite. I don't sort Skittles though. I just eat them handfuls at a time.

One of my more odd OCD things with candy is with Reeses Peanut Butter Cups. I eat the outside part first, then the middle in two bites. I'm sure there's more weird ways that I eat candy, but I just can't think of them right now. Plus I don't want you guys having more ammunition to use against me

Wow, I feel like the freak. I sometimes mash one piece of each Skittles color in to a large cube (it ends up a brownish purple color) and then eat it. If their too cold to that then I just eat in the order they slide out of the bag. I don't do anything special with my M&M's although when I was little I liked to eat the candy coating first then the melty chocolate middle.